Table 6-1 contains the formats supported by Readseq. ID is a number that can be used for this format (name is prefered). Alternate Names are separated by using the | character. You can use any of these names to specify a format. R and W indicate if Readseq can read and write this format. I means the format is interleaved. F indicates that sequence record documentation and features are parsed. S indicates that the format contains sequence data. Content-type is the magic string sent for that format through a CGI web server. The suffix is the standard file suffix used for that format.